Security Futures Commissions

Does anyone have any information on what commissions are likely to be for security futures contracts (otherwise known as single stock futures)?
I was just checking out the OneChicago site. Their SF contracts will be for 100 shares of the underlying. To trade an equal amount of futures as I do the underlying it means I'll need 10 contracts (1000 shares). (Let's imagine the liquidity is there)
Commissions would have to be a lot less than what's being charged for e-mini futures, even the low $2.40/side at IB. I'd say anything over $0.50 per side would be too much.